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1518 Rovaniemi (1938 UA)
Classification: Main-belt Asteroid          SPK-ID: 2001518
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1433816576881506 3.2076e-08  
a 2.225499656030751 4.9305e-09 au
q 1.906403826164653 7.0331e-08 au
i 6.712371048781814 3.7814e-06 deg
node 27.79430965020461 3.118e-05 deg
peri 36.94561009963757 3.4293e-05 deg
M 183.6537843572019 1.5006e-05 deg
tp 2459594.523146075730
(2022-Jan-15.02314608)
5.128e-05 TDB
period 1212.661875435014
3.32
4.0299e-06
1.103e-08
d
yr
n .2968675830357564 9.8654e-10 deg/d
Q 2.544595485896849 5.6374e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2580  
   data-arc span      33599 days (91.99 yr)  
   first obs. used      1928-10-07  
   last obs. used      2020-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45628  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:18:12  

Additional Information
 Earth MOID = .923935 au 
 Jupiter MOID = 2.7612 au 
 T_jup = 3.624 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4   n/a MPO265964  
diameter diameter 8.480 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.249 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2009) Minor Planet Bull. 36, 109-116.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.295   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1518 Rovaniemi (1938 UA)          Discovered 1938-Oct-15 by Vaisala, Y. at Turku
Independent discovery Oct. 21 by E. Delporte, Uccle, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1938 UA = 1928 TL = 1951 SH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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